Dental plate brush



June l5 1926. 1,588,940

H. CAVE DENTAL PLATE BRUSH Filed Jan. 50. 1925 2 sheets-'sheet 1 June 151926. 1,588,940

H. CAVE DENTAL PLATE BRUSH Filed Jan. 50. 1925 2 Sheets-Sheet 2 PatentedJune 1'5, 1926.

UNITED STATES 1,588,940 PATENT OFFICE.

Y HENRY CAVE, F HARTFORD, CONNECTICUT, ASSIGNOB To THE FULLER BRUSH COH-PANIT, OF HARTFORD, CONNECTICUT, 'A CORPORATION OF CONNECTICUT.

DENTAL PLATE BRUSH;

Application iled January 80, 1925. Serial No. 5,760.

My invention relates to brushes that are especiall formed for cleaningdental plates, and an o ject of my invention, among others,

is the production of a brush of this class so One form of brush'embodying my invention and in the construction aud use of which theobjects herein set out, as well as others. may be attained, isillustrated in the accompanying drawings, in which- Figure 1 is a planview of a brush embodying my invention.

Figure 2 is a side view of the same.

Figure 3 is a perspective View of a dental plate.

Figures 4 and 5 are illustrative views showing the manner of use of thebrush to clean such dental plate.

Figures 6 to 8 illustrate the manner of using the device.

In the accompanying drawings the numeral 6 indicates a handle that maybe of any suitable shape and material, and to which handle a brush 7 issecured. This brush comprises a loop 8 at its outer end, in thepreferred forni of construction this loop being substantially round withan opening 9 of substantial dimensions through its center. Between thiscircular loop and the handlel there is a straight portion 10 and theloop 8 is offset from a plane parallel therewith and extending throughthe axis of the handle, a portion 11 arranged at an oblique angle tosaid plane connecting said straight portion and circular loop, as shownin Figure 2 of the drawings.

In the preferred form of construction this brush is of what is known asthe twisted Wire type, that is the bristles are secured to a core formedof twisted wire.

Important features of my improved brush include the circular loop, theobliquely disposed portion 11 and the straight portion 10, irrespectiveof how these parts are constructed or formed, but in a preferredarrangement. and as shown herein, said brush is composed of a brushmember comprising a core with bristles secured thereto that is folded atits lengthwise center into the circular loop 8, the. parts extendingfrom said loop being arranged parallel to each other and close togetheralong the obliquely arranged part 11 and the strai ht portion 10.

It will be note that the structure as herein illustrated and describedas peculiarly adapted to the cleaning of dental plates. In thisoperation the circular looped portion 8 may be readily applied to thewalls of the gum groove 12 of a dental plate 13, and the upper surfaceof the arch 14 will be surrounded by the loop 8 so that by swinging thebrush back and forth with the arch in the opening in the brush as apivot the entire upper surface of the plate includin the gum groove maybe easily and quickly oleane and as illustrated in Figures 4 and of thedrawin s, from which it will be seen that the brus lits nicely withinthe gum groove on the upper surface of the plate and when moved with apivotal action, the handle bein swung from side to side, the lit of thebrus to the upper surface of the plate will be maintained, and this willresult in a. very effective and thorough cleaning of the plate, theoblique portion l1 cooperating in producing the lit and also in thecleaning operation, enabling the latter to be performed withoutobstruction from other parts of the brush structure.

The circular loop in cooperation with they oblique ortion 11 alsoreadily adapts itself to the c eaning of the under surface of the plateincluding the arch and tongue groove 15, the brush being tipped fromside to side and swung in varlous directions to cause it to make contactwith the entire under surface of the plate. In this operation it will beseen that the oblique part 11 and the loop causes the brush to nicelyfit the arch, including the tongue groove, and as shown in Figure 6 ofthe drawings, whereby a very effective and thorough cleaning of thissurface of the plate with little effort on the part of the operator maybe accomplished.

The straight portion and the oblique portion 11 may be employed to cleanthe edges of the plate to which the teeth are secured, this by amovement of the brush crosswise of the teeth, lengthwise thereof or inany other direction, and as illustrated in Figures 7 and 8, from whichit will be seen that the oblique portion l1 in connection with thestraight portion 10 causes the brush to nicely fit the groove of theplate on which the teeth are disposed and the teeth may be, therefore,very readily cleaned by moving the brush with a rubbing action aroundthe edge of the teeth and plate. By using the straight part in themanner illustrated in Figure 8 and effecting a vertical movement thecrevices between the teeth and at the base thereof where they enter theplate may be very thoroughly cleaned with little trouble.

While there is herein shown a'nd described the preferred embodiment ofthe present inventlon, it is, nevertheless to be understood that minorchanges lnay be made therein without departing fromthe spirit and scopeof the invention as claimed. Y

I claim- `1. In a dental plate bush, a twisted bristle carrying coreformed with a substantially closed vcircular loop portion, the endportions of the bristle carrying core being arranged substantially paralel, the bristles carried by the end portions being disposed incontacting relation and a handle attached to the termini of the endportions.

2. ln a dental plate brush, a bristle carrying core formed with asubstantially closed circular loop portion, the end ortions of the corebeing arranged substantlally parallel in contacting relations, bothsides of the core being obliquely disposed between the loop and endportions to present the loop and end portions in different parallelplanes.

HENRY CAVE.

